Green Turtle Cay is one of the barrier islands off mainland Great Abaco, The Bahamas.

In 1977, Key West, Florida became a sister city to New Plymouth, Green Turtle Cay's village.

The architecture of the older homes in the village is unique in the Bahamas, with steep-pitched roofs, originating with settlers from New England.

[3] New Plymouth also features the "Loyalist Memorial Sculpture Garden," a Bahamian National Monument featuring 24 busts of prominent Bahamians arranged around a central pair of life-sized bronze figures of both black and white loyalist women, sculpted by James Mastin.

In August 2019, Green Turtle Cay and the rest of the Abacos were struck by Hurricane Dorian.